41 results about "High-speed grinding" patented technology

The invention relates to a novel superspeed grinding wheel box spindle structure, and relates to the field of precision machining technology, the novel superspeed grinding wheel box spindle structure comprises a box body, a grinding wheel spindle, a bearing system and a grinding wheel positioning mechanism, the bearing system is integrated with a hybrid bearing, and stable and reliable axial positioning and pre-tightening are provided for the grinding wheel spindle through a fixing sleeve, a pre-tightening spring and a bearing sleeve; and the influence of thermal expansion and cold contraction of the grinding wheel spindle is avoided, and axial locking of the grinding wheel spindle due to abnormal temperature rise can be effectively prevented. The grinding wheel positioning mechanism comprises an elastic positioning sleeve, a compression nut and a fastening screw, automatic centering of the superhard grinding wheel in the mounting and fixing process can be achieved, and the high-rigidity and high-coaxiality clamping effect is achieved. The mounting and positioning precision and reliability of the grinding wheel under the ultra-high-speed working condition can be improved, and the long-term operation stability and machining quality of the grinding wheel spindle are guaranteed.

The present application relates to a kind of intermittent oscillating heat pipe grinding wheel for aerospace high tough difficult-to-machine material grinding and its manufacturing method.The intermittent oscillating heat pipe grinding wheel includes intermittent oscillating heat pipe pipeline, liquid working medium, body and abrasive layer.Liquid working medium is injected into intermittent oscillating heat pipe, the groove is processed on the front and back sides of body, and two intermittent oscillating heat pipes are respectively embedded into the groove and fixed by brazing, forming a whole with the body;Intermittent oscillating heat pipe pipeline is bent by a group of metal capillary tubes into more than one head-to-tail connected serpentine closed loop, each loop includes straight pipe section and elbow, and necking is processed on the straight pipe section of each loop near condensing section.In high-speed grinding condition, the necking of intermittent oscillating heat pipe pipeline generates local pressure difference, promotes the intermittent fountain flow of liquid working medium, and intermittently spouts in oscillating heat pipe pipeline, realizes the rapid heat dissipation and efficient cooling of grinding wheel.

The invention relates to the field of ultra-precision optical grinding machines, and provides an ultra-precision small-caliber optical grinding machine integrated with a polishing function and a machining process of the ultra-precision small-caliber optical grinding machine. The small-caliber optical grinding machine achieves micron-order feeding and single-point grinding through multi-axis cooperative movement, meanwhile, due to the position distribution of a machine tool grinding wheel shaft, the high-speed grinding main shaft and the B-axis hydrostatic pressure rotary table, the torque of the B-axis hydrostatic pressure rotary table can meet the cutting torque formed by grinding force more easily, the precision stability of the machined surface type of an optical part is improved, and the machining precision of the optical part is improved. The problems that strong interference geometric components and thin-wall fragile parts are fragile in the rough grinding process and the polishing process is low in efficiency are solved. The workpiece static pressure main shaft clamps the bar through the clamp with the cavity inside, the workpiece can be cut off after machining, part of the remaining length of the bar in the clamp is pulled out to machine the next workpiece, the problem that a current ultra-precision machine tool cannot achieve small-batch machining through one-time clamping of the optical element bar is solved, and the machining precision and the machining efficiency are improved.

The invention discloses a radial ultrasonic vibration grinding wheel suitable for high-speed grinding and a using method. The grinding wheel comprises a grinding wheel resonance outer ring, a non-contact electric energy transmission device, an ultrasonic transducer, a grinding wheel front cover plate, a grinding wheel rear cover plate and a grinding material layer. Ultrasonic transducers in a longitudinal vibration mode are uniformly mounted on the inner circumferential surface of the resonant outer ring, and power is supplied to the transducers in a non-contact manner, so that the resonant outer ring generates radial ultrasonic vibration in an expansion vibration mode. The abrasive material layer is made of cubic boron nitride or diamond abrasive particles and is fixed to the outer circumferential face through brazing or electroplating, and efficient cutting of a workpiece is achieved. And the grinding force can be effectively reduced and the machining efficiency and the surface quality can be improved by cooperating with rotation and feeding movement of a machine tool spindle. Test results show that the method is suitable for precise grinding of hard and brittle materials and difficult-to-machine materials under the conditions of high speed and large cutting depth.

The invention relates to the technical field of machining process parameter optimization, in particular to a surface quality dynamic optimization method for camshaft non-circular contour high-speed grinding. The method comprises the following steps: collecting a multi-source mixed signal in a camshaft non-circular contour high-speed grinding process; a signal processing method based on WPD-EWT-FastICA is adopted to separate out a source signal component corresponding to the state of the grinding machining process; a high-correlation feature set with high state correlation with the grinding machining process is optimized through ReliefF; dividing state labels; a recognition model based on CNN-LSTM-Attention is trained; a real-time multi-source mixed signal is obtained during machining, and a real-time grinding machining process state is output; and triggering a dynamic response mechanism, updating the multi-objective optimization function, and obtaining an optimal process parameter combination. According to the method, the optimal process parameter combination can be adaptively adjusted in real time, and the surface roughness, the residual stress and the material removal rate are dynamically optimized.

The invention relates to the field of machining modeling, in particular to a camshaft non-circular contour high-speed grinding surface topography dynamic modeling method, which comprises the following steps of: acquiring a mixed signal to obtain a source signal component corresponding to grinding wheel wear; signal features with high correlation with grinding wheel wear are selected to be combined with the grinding wheel abrasive particle wear area to jointly construct an abrasive particle wear online prediction model based on FAW-DELM; measuring the surface appearance of the grinding wheel, setting the grinding particle exposure height to obey normal distribution, calculating the grinding wheel grinding particle exposure height through the real-time grinding wheel grinding particle wear area, dynamically adjusting the mean value of the normal distribution, and combining the measured grinding particle space distribution calculation result to establish a grinding wheel surface appearance dynamic simulation model; establishing a single abrasive particle grinding motion trajectory equation considering vibration; and the grinding surface topography is generated in combination with the grinding wheel surface topography dynamic simulation model and the single abrasive particle grinding motion trajectory equation considering vibration. Dynamic analysis can be carried out, and the accuracy is high.

The invention belongs to the technical field of precision grinding tool manufacturing, discloses a laser processing grinding wheel and a preparation method thereof, and aims to solve the problems that in the prior art, the bonding strength of a grinding material layer and a base body is weak, and harsh grinding requirements such as high-speed grinding, heavy-load grinding and composite material large-engagement synchronous grinding are difficult to meet. A laser machining grinding wheel comprises a grinding wheel base body and a grinding wheel abrasive layer. Inclined array blind holes are formed in the surface of the grinding wheel base body, and the grinding wheel abrasive layer is located on the surface of the grinding wheel base body and in the array blind holes. The raw materials of the grinding wheel abrasive material layer comprise amido modified titanate and phthalonitrile resin. According to the grinding wheel, the grinding material layer containing the phthalonitrile resin is subjected to 3D photocuring forming through the large-focus laser, the blind hole array is fully filled with the high-temperature-resistant, low-shrinkage and high-strength grinding material layer, and the grinding wheel product which is formed by high-strength combination of the grinding material layer and the base body and can be used at the high temperature for a long time is obtained.

The utility model discloses a slow feed powerful grinding high-speed grinding wheel device which comprises a working table, a supporting frame is arranged above the working table, an empty box is fixedly connected above the supporting frame, two grinding wheels are arranged below the supporting frame, an adjusting mechanism is arranged inside the supporting frame, and the adjusting mechanism is connected with the empty box. The adjusting mechanism comprises a raised line arranged outside the support frame; and a sleeve. The utility model relates to the technical field of grinding tools, in particular to a slow-feeding high-speed grinding wheel device capable of powerfully grinding, which realizes the adjustment of the positions of grinding wheels on two sides through the matching among a turntable, a double-end lead screw, a lead screw nut, a pulley, a vertical column, a sleeve and a raised line, and solves the problem that when the existing grinding wheel device works, the positions of the grinding wheels on the two sides are fixed, so that the grinding wheels cannot be fixed. The problems that slow-feeding powerful grinding can only be conducted on the same position of one part, the positions of grinding wheels on the two sides cannot be adjusted, and therefore the working range of an existing grinding wheel device is reduced are solved.

The application provides a whole-blade-disc tip precision milling method, which uses a chamfering milling cutter as a precision cutter. In the precision milling process, the cutting edge of the chamfering milling cutter is tangent to the tip, and the direction of the precision cutter is controlled to be along the milling direction. When the precision cutter rotates, the cutting force is directed towards the blade root rather than the blade side. Therefore, the machined part of the tip has sufficient rigidity, and the precision milling of the tip can be completed based on the chamfering milling cutter. The more complex high-speed grinding method is not needed for the machining of the tip, the machining process of the tip is simplified, and the machining cost is reduced.

The utility model discloses a high-speed abrasive drill, which belongs to the technical field of abrasive drills, and comprises an abrasive drill body and a grinding head assembly, the side wall of the front end of the abrasive drill body is provided with a ball, a sliding sleeve and a sleeve spring in a sliding manner; the grinding head assembly comprises a grinding head, a first protective pipe, a front protective cover and a rear protective cover, and an annular groove is formed in the outer side of the rear protective cover; the rear end of the grinding head can be detachably inserted into the grinding drill body; guide pipes are arranged inside two ends of the first protective pipe. By overcoming the elastic force of the spring, the sliding sleeve slides backwards, and the grinding head assembly and the grinding drill body can be conveniently and rapidly disassembled and assembled; after the grinding head assembly and the grinding drill body are inserted in place, the sliding sleeve slides forwards, the balls are squeezed inwards and clamped into the annular groove, and reliable installation of the grinding head assembly and the grinding drill body is achieved. The guide pipes at the two ends can prevent the grinding head from making direct contact with the first protective pipe, heat generated by relative friction is effectively reduced, the design diameter of the grinding head is effectively increased, and the grinding head is prevented from being broken. The overall structure is simple, implementation is easy, and practicability is good.

This utility model relates to the field of machining equipment technology, specifically to a bar stock rough grinding device, comprising a base 1, a base 2, an electric slide 1, an electric slide 2, a grinding wheel spindle, a grinding wheel, and a clamping assembly. Base 1 is located on the left side of base 2. Electric slide 1 and electric slide 2 are respectively mounted on base 1. The grinding wheel spindle is mounted on electric slide 2. The grinding wheel drive assembly is located behind the grinding wheel spindle and is connected to the grinding wheel spindle via a transmission mechanism. The output shaft of the grinding wheel spindle is connected to the grinding wheel. The clamping assembly for holding the bar stock is fixedly mounted on base 2. Through the cooperation of a synchronous follower bracket and sliding frame, etc., it provides stable support for the bar stock combining dynamic and static elements, significantly improving the stability of the bar stock during high-speed grinding. It solves the problem of workpiece displacement caused by vibration or impact in traditional equipment, ensuring machining accuracy and surface quality.

This invention relates to an intelligent control device and method for temperature rise of guideways in CNC gantry grinding machines. The device comprises several thermally symmetrical and parallel V-shaped and planar guideways A on the machine bed. Each V-shaped and planar guideway A section is equipped with an independent PLC intelligent temperature control system and structural device. This invention solves the technical problems of guideway deformation and distortion caused by sliding friction and heat expansion, as well as the related technological challenges. It enables real-time and accurate detection and intelligent control of the temperature rise of each guideway within the grinding stroke, avoiding the problem of thermal deformation and distortion caused by differences in frictional force due to the different structural forms of the V-shaped and planar guideways. This improves the linear and planar accuracy and stability of the worktable movement, and also solves the prominent technical problems of straightness, flatness deviations, and grinding marks caused by long-term continuous high-efficiency grinding. This effectively improves the accuracy and efficiency of CNC gantry grinding machines in long-term continuous high-speed grinding of large key parts guideways.

The application belongs to the field of abrasive tool abrasive processing, and particularly relates to a ceramic grinding wheel wax infiltration process. The ceramic grinding wheel wax infiltration process is realized by using a wax infiltration device; the wax infiltration device comprises a wax infiltration pot A, a wax infiltration pot B, and a wax infiltration pipeline capable of connecting the wax infiltration pot A and the wax infiltration pot B. The process is used to infiltrate a wax liquid with good fluidity into the pores of the grinding wheel by vacuumizing, and in the high-speed grinding process of the prepared grinding wheel, a large amount of grinding heat is continuously generated, and after the pores of the grinding wheel are filled with the wax, the grinding heat caused by the grinding simultaneously acts on the workpiece and the wax, a large amount of grinding heat is taken away by the melting and gasification of the wax, and the workpiece is prevented from being burnt; meanwhile, the melted wax liquid acts on the grinding area, so that an adsorption film is formed between the grinding wheel and the workpiece, and the adsorption film plays a lubricating and rust-proof role and improves the grinding quality of the workpiece. The wax infiltration process is easy to popularize and apply in the abrasive tool industry and the processing industry.

The utility model discloses a high-speed grinding wheel for glass processing, and relates to the technical field of glass processing. Comprising a grinding wheel seat and a grinding wheel mounted at the top end of the grinding wheel seat and used for grinding. The outer cambered surface of the grinding wheel seat penetrates through the inner cavity of the grinding wheel and is provided with a plurality of groups of dewatering ports at equal radian, and the inner wall of the positioning bottom plate is provided with a plurality of groups of water distributing grooves corresponding to the dewatering ports. According to the high-speed grinding wheel for glass processing, through collaborative optimization of materials, structures and functions, the glass processing efficiency and quality are remarkably improved. By adopting the design of the high-strength diamond material, the silicon carbide and the ceramic abrasive, the cutting hardness and the thermal conductivity are guaranteed during high-speed operation, the stress concentration problem is relieved, and the overall service life of the grinding wheel is prolonged. Rapid circulation and throwing-out of the cutting fluid are achieved, the grinding temperature is effectively reduced, glass edge breakage or burning is avoided, and the surface smoothness under 12 m / min high-speed machining is ensured.

The invention belongs to the technical field of grinding devices, particularly relates to a rotor profile grinding device for a double-screw air compressor, and provides the following scheme aiming at the problems that in the prior art, scrap iron and dust residues are easily caused, self-adaptive adjustment cannot be performed according to the blockage condition of a filter screen, nozzle positioning deviation is easily caused, and continuous and accurate angle positioning is difficult to achieve. Comprising a workbench, supporting legs are fixedly mounted on the left side and the right side of the bottom of the workbench, a mounting box is fixedly mounted at the top of the workbench, a machining block is fixedly mounted on the left side of the mounting box, a first hydraulic cylinder is arranged at the top of the machining block, a first driving motor is arranged on an output shaft of the first hydraulic cylinder, and a grinding wheel head is fixedly mounted on an output shaft of the first driving motor; according to the high-speed grinding device, scrap iron splashed during high-speed grinding can be rapidly sucked away, self-adaptive adjustment can be achieved according to the blocking condition of the filter screen, the nozzle can be adjusted according to the position of the adjusting block, and angle positioning can be continuously and accurately conducted.

The invention relates to the technical field of grinding wheel state detection, in particular to a high-speed grinding wheel state recognition and detection method based on an INOA-SVM model, and the method comprises the following steps: S1, obtaining an original vibration signal, and carrying out the wear division; s2, data processing of the original vibration signals; s3, an INOA-SVM model is constructed and verified; and S4, identifying and detecting the wear state of the high-speed grinding wheel. By processing the vibration data of the high-speed grinding wheel, complex original vibration data can be decomposed into simple signals for iteration, non-grinding vibration can be eliminated, meanwhile, the recognition and detection efficiency of the grinding state recognition and detection model can be improved, the SVM model is optimized through the INOA model, and the recognition and detection efficiency of the grinding state recognition and detection model is improved. Therefore, the grinding state identification and detection model jumps out of local convergence, and the grinding state identification and detection model has high convergence speed and high stability, so that the accuracy and the stability of high-speed grinding wheel state identification and detection are improved.

The application discloses a kind of diamond composite pick high-speed grinding repair device, it is related to diamond composite pick grinding technical field, including workbench, workbench upper end is equipped with sliding slot, the sliding slot inner wall slidingly connected with stroke seat;Grinding mechanism, the grinding mechanism includes the groove being equipped in the upper end of stroke seat, the groove inner wall slidingly connected with moving block, the moving block upper end is fixedly connected with grinding table, the grinding table upper end is symmetrically rotatably connected with two installation shafts, two The sidewall of installation shaft is fixedly connected with swing bar, the swing bar upper end is rotatably connected with tool holder, the tool holder side wall is fixedly connected with blade, the stroke seat upper end is fixedly connected with two straight guide rails by fixed shaft.The present application can drive the blade to travel along the shape of diamond composite pick by starting servo motor, so as to grind it, can realize the rapid grinding repair of diamond composite pick, compared with artificial grinding, more efficient.

A heat dissipation type thick grinding wheel for grinding a blade of a plate shearing machine belongs to the technical field of grinding, a through hole is formed in the center of the grinding wheel, a heat dissipation ring is arranged in the grinding wheel and filled with paraffin-based phase change materials to absorb heat, a groove is formed in the inner surface of the heat dissipation ring, inclined heat dissipation fins are arranged in the heat dissipation ring, and the surface of the heat dissipation ring is coated with a ceramic coating; a temperature sensor is arranged in the fixing block, cooling fins are arranged on one side of the cooling ring, cooling holes are formed in the surface of the heat conduction block, reinforcing ribs are distributed on the surface of the cooling ring, an adjustable counterweight groove is formed in the surface of the fixing block, and the grinding wheel and the cooling ring are in bolted connection through a through hole and a positioning hole to ensure concentricity. The heat conduction blocks and the heat dissipation fins accelerate heat discharge, material deformation is prevented, the heat dissipation fins are obliquely arranged, airflow disturbance is enhanced, the heat dissipation efficiency is improved, the heat dissipation fins and the heat conduction holes form airflow channels, further heat dissipation is achieved, the reinforcing ribs improve the deformation resistance, the balance weight grooves guarantee the high-speed rotation stability, the overall structure is compact, heat dissipation is efficient, and the high-speed grinding machine is suitable for high-speed grinding machining.

The utility model discloses a low-cost quick trimming device for a circular cover body, which relates to the technical field of machining, and comprises a bracket and a pressure plate which are used for clamping a blank piece, the bracket and the pressure plate are both rotatable, a cutting machine is arranged on one side of the bracket, and the position of a cutting knife on the cutting machine corresponds to the position of the blank piece. The aramid composite material cutting device can solve the problem that the cutting edge of an aramid composite material is rough, a high-speed grinding mode is adopted for cutting, and the edge of a cut product is neat and free of burrs.

The present application relates to the technical field of machining process parameter optimization, and particularly relates to a surface quality dynamic optimization method for camshaft non-circular contour high-speed grinding; the method comprises the following steps: collecting multi-source mixed signals in the camshaft non-circular contour high-speed grinding process; separating out source signal components corresponding to the grinding process state by using a signal processing method based on WPD-EWT-FastICA; selecting a high-correlation feature set with high correlation with the grinding process state by using ReliefF; dividing state labels; training a recognition model based on CNN-LSTM-Attention; acquiring real-time multi-source mixed signals during processing, and outputting real-time grinding process states; triggering a dynamic response mechanism, updating a multi-objective optimization function, and acquiring an optimal process parameter combination; the method can adaptively adjust the optimal process parameter combination in real time, and dynamically optimize surface roughness, residual stress and material removal rate.

The invention relates to an inner-cooling brazed grinding wheel capable of efficiently transporting cutting fluid and an operation method of the inner-cooling brazed grinding wheel. The grinding wheel comprises a metal matrix, a brazed abrasive layer and an inner-cooling runner system. The metal base body is divided into an upper base body and a lower base body, the brazing abrasive material layer is brazed to the peripheral face of the metal base body, the inner cooling runner system is integrated in the metal base body and composed of an annular runner and radial runners, the annular runner surrounds the center of the grinding wheel, and the radial runners evenly extend from the annular runner to the edge of the grinding wheel. The radial flow channels are arranged to be of a double-U-shaped structure and an arc-shaped structure respectively, and a micro-groove backflow prevention structure is arranged in the arc-shaped structure flow channel. In the working process, cooling liquid is introduced into the inner cooling flow channel system by means of the rotating shaft of the upper base body, the cooling liquid is distributed to the radial flow channel through the annular flow channel and then conveyed to the position near a grinding wheel grinding area, and accurate and efficient cooling of the grinding area is achieved through orderly guiding of the cooling liquid. Through the backflow prevention and multi-stage flow distribution structure, the supply uniformity and the cooling efficiency are improved, and the device is suitable for high-speed grinding machining scenes.

The utility model relates to the technical field of electric spindles, in particular to a high-speed grinding electric spindle. A high-speed grinding electric spindle comprises a shell, a front bearing seat and a rear bearing seat are arranged at the two ends of the shell respectively, a front bearing set and a rear bearing are arranged in the front bearing seat and the rear bearing seat respectively and used for being movably provided with a core shaft, a motor stator is arranged on the inner side of the shell, and a motor rotor is arranged on the core shaft in a sleeved mode. The front end of the mandrel is used for installing a grinding tool. According to the high-speed grinding electric spindle, the mandrel is movably installed through the front bearing set and the rear bearing, rotation of the mandrel is facilitated, the front bearing set is adopted at the front end of the spindle, the rear bearing is supported at the rear end of the spindle, and the front bearing set at the front end can bear radial force and can also bear axial force.

The present application relates to an asymmetric-diameter oscillating heat pipe grinding wheel, and a manufacturing method therefor and the use thereof. The grinding wheel mainly consists of a grinding wheel front end cover, an oscillating heat pipe base, and a grinding wheel rear end cover, the three parts being laser-welded into an integrated structure, wherein oscillating heat pipe flow channels are arranged in a staggered manner on each of the front and rear surfaces of the oscillating heat pipe base; and the oscillating heat pipe flow channels include a plurality of single-loop asymmetric-diameter structures that are connected end to end. The structure can enable, by means of variable-diameter structures, different pressure gradients to be formed inside the flow channels, thereby providing an additional pressure difference for the flow of an internal working medium, and promoting the internal working medium of oscillating heat pipes to form a stable unidirectional cyclic motion. The asymmetric-diameter oscillating heat pipe grinding wheel can still maintain an efficient heat transfer performance and operating stability under high-speed grinding conditions.

To provide a resin bond grinding wheel for plane grinding which can obtain a lifetime of the grinding wheel and a grinding quality with less abrasion due to processing heat in high-speed grinding processing of a metal workpiece.SOLUTION: A grinding wheel 16 contains: granulation materials 22 densely granulated with no pores by setting abrasive grains 18 combined with a phenol resin (first thermosetting resin) 20 of a high heat resistance and a high elastic modulus, an epoxy resin (second thermosetting resin) 24, which combines the granulation materials 22, of a lower heat resistance and a lower elastic modulus than the phenol resin 20; and pores of 20.2 to 38.3 vol.% formed among the granulation materials 22. When a face of a metal workpiece 12 is ground at a high speed with a side face of the grinding wheel 16, while abrasion due to processing heat is suppressed, a lifetime of the grinding wheel 16 and a grinding quality of the metal workpiece 12 are obtained. Further, since even a resin bond grinding wheel has pores of 20.2 to 38.3 vol.% among the granulation materials 22, clogging is suppressed and a preferable grinding wheel lifetime and sharpness can be obtained.SELECTED DRAWING: Figure 2

The application discloses a high-speed grinding method for directionally cast high-temperature alloy turbine working blades, which comprises the following processes: grinding directionally cast high-temperature alloy turbine working blades by using a grinding wheel; the grinding line speed Vs is not less than 43 m / s and the feeding speed Vw is not less than 1000 mm / min in each grinding process; the cutting depth of the first cutter is 0.5 mm, and the cutting depth of subsequent grinding processes is sequentially decreased; and the grinding wheel is a single-crystal corundum grinding wheel. The method solves the problem of low processing efficiency of the grinding method for directionally cast high-temperature alloy turbine working blades in the prior art, and seriously affects the production speed. By adopting the single-crystal corundum grinding wheel, the grinding line speed Vs is not less than 43 m / s, the feeding speed Vw is not less than 1000 mm / min, and the cutting depth of the grinding process is limited, the grinding efficiency is improved by 3.6 times, and the surface integrity requirement is met.

The application discloses a grinding wheel for preventing end face cracks of a workpiece in a high-speed grinding process and a preparation method thereof, and belongs to the field of grinding wheel manufacturing and grinding processing. The two end faces of the grinding wheel are provided with randomly distributed micro holes (200-500 microns) through laser marking, a high number of binders (23-28%) is used in the formula of the grinding wheel, and a method for forming micron-sized small holes (5-10 microns) in the binders is used to increase the convective heat transfer of the cooling medium, so that the cooling medium carries away more heat, thereby preventing end face grinding cracks. In the method, the high binder mass ratio increases the wrapping holding force of the binder on the CBN abrasive, reduces the falling of the abrasive and improves the durability of the grinding wheel. The micro holes adsorb moisture through capillary action during grinding, the millimeter holes can form a cooling water flow channel, the combination of laser marking and micron-sized small holes in the binder has good cooling effect, does not weaken the grinding performance of the grinding wheel itself, thereby reducing the dressing frequency of the grinding wheel and prolonging the service life of the grinding wheel.

This invention provides a composite vibration-damping electric spindle for high aspect ratio internal grinding, relating to the field of precision machining equipment technology. It includes a spindle housing, a drive shaft, and a passive composite vibration damping system. The passive composite vibration damping system includes multiple sets of non-contact eddy current damping components, multiple sets of built-in particle damping components, and a cooling component. The built-in particle damping components include damping particle baffles, with a sealed damping cavity arranged axially along the drive shaft between the outer wall of the damping particle baffles and the inner wall of the spindle housing. The damping cavity is filled with several damping particles. The non-contact eddy current damping components include permanent magnets fixedly disposed on the inner walls of both ends of the damping particle baffles and conductive rings sleeved on the outer wall of the drive shaft and radially opposite to the permanent magnets. A radial air gap is left between the permanent magnets and the conductive rings. This invention, through the integration of non-contact electromagnetic damping and built-in particle damping, effectively suppresses regenerative chatter of the spindle during high-speed grinding, improving machining accuracy.

The application provides a high-speed grinding device for solvent pigment production, and relates to the technical field of solvent pigment production, which comprises a support frame, a grinding box is fixedly installed on one side of the support frame, and a grinding groove is formed in the top of the grinding box. Through the high-efficiency grinding and discharging assembly, the electric telescopic rod can drive the discharging baffle to move after grinding is completed. After the discharging baffle does not support the raw materials, the ground raw materials can fall into the inside of the solvent pigment collecting drawer for collection. The grinding disc is centrally upwardly protruding, so that the raw materials above the grinding disc can fall into the inside of the grinding groove under the action of gravity, and the raw materials will not be accumulated on the top of the grinding disc. The outer diameter of the grinding groove is larger than that of the grinding disc, so that the continuously falling raw materials can fall from above the grinding disc into the inside of the grinding groove, and the device has a good grinding effect on the raw materials.

This invention discloses an ultrasonic vibration electrolytic grinding composite spindle component in the field of grinding composite spindle technology, comprising an insulating shell; a hollow spindle rotor; an ultrasonic vibration mechanism connected to the hollow spindle rotor and used to generate and transmit axial ultrasonic vibration; a rotary drive device for driving the hollow spindle rotor and the ultrasonic vibration mechanism to rotate together; and an electrolysis mechanism including a conductive slip ring and an electrolyte delivery assembly, the electrolyte delivery assembly being used to deliver electrolyte to the grinding area at the front end of the hollow spindle rotor; wherein, the first electrical channel of the conductive slip ring is electrically connected to the ultrasonic vibration mechanism for transmitting high-frequency electrical signals; the second electrical channel of the conductive slip ring is electrically connected to the tool mounting end of the hollow spindle rotor for transmitting direct current for electrolytic machining. This composite spindle component, by integrating ultrasonic vibration, electrolytic machining, and high-speed grinding processes, overcomes the fundamental technical bottlenecks of low material removal rate, severe thermal damage, and rapid tool wear in traditional single ultrasonic grinding.

The invention relates to the field of high-end machine tool grinding equipment, in particular to a high-speed grinding wheel electric spindle which comprises a shell and a spindle body, a plurality of cooling channels are formed in the shell in the length direction of the shell, and the upper side and the lower side of the shell are communicated with a liquid inlet and a liquid outlet. The liquid inlet and the liquid outlet are communicated through a cooling channel and a material passing opening formed in the shell, a filter screen is installed at the liquid inlet in the horizontal direction and used for filtering cooling liquid, a sewage draining channel is formed in the shell in the length direction of the shell, and a sewage draining opening is formed in the end, away from the liquid inlet, of the shell. The left end and the right end of the sewage draining channel are communicated with the liquid inlet and the sewage draining outlet respectively, and a blocking assembly is additionally arranged between the cooling channel and the sewage draining channel and used for controlling opening and closing of the cooling channel and the sewage draining channel. The high-speed grinding wheel motorized spindle aims to effectively prevent the motorized spindle from being damaged due to high temperature in the daily operation process of the high-speed grinding wheel motorized spindle.